Impact-absorbing device and structure for blocking noise between floors by using same

ABSTRACT

An impact-absorbing device and a structure for blocking noise between floors by using same are proposed. The impact-absorbing device has a body ( 100 ) including an upper cylinder ( 120 ), of which the inside is empty and which has an opening opened downward, and a lower container ( 140 ), of which the upper end is inserted into the upper cylinder ( 120 ), so that the length thereof can extend and contract has an elastic support ( 160 ) formed in the transverse direction inside the upper cylinder ( 120 ) and/or the lower container ( 140 ), and includes a transmitting body ( 180 ), which is supported by the elastic support ( 160 ) so as to transmit, to the elastic support ( 160 ), impact applied to the upper cylinder ( 120 ), and thus impact is absorbed since the elastic support ( 160 ) is elastically deformed by the transmitting body ( 180 ) while the length of the body ( 100 ) is reduced due to the impact.

TECHNICAL FIELD

The present disclosure relates to an impact-absorbing device and astructure for blocking noise between floors by using the same and, moreparticularly, to a device configured to absorb an impact generated froma bottom of a building and a structure configured to block noise betweenfloors generated from the building by using the device.

BACKGROUND ART

In recent years, the form of buildings has been concentrated intomulti-story apartment buildings, such as apartments and villas. In theseapartment buildings, noise between floors inevitably occurs due to animpact to a floor, and the conflict between residents due to the noiseis emerging as a major social problem. Therefore, in order to securequiet residential environment, efforts for implementing the impact noiseblocking performance of a floor have been made.

The floor impact noise is divided into a heavy impact noise, such asnoise generated when children run, and a light impact noise, such as anoise made when a chair is moved. Herein, a main cause of conflict dueto the noise between floors is heavy impact noise, and reinforcement ofa structure is proposed as a solution, such as increasing the thicknessof a concrete slab of a floor of a building. However, when the thicknessof the floor slab of the building is increased, as the weight of thebuilding is increased as well as the amount of the floor slab, thedimensions of major structural members such as beams, columns, andfoundations also are increased. Therefore, there is a problem in thatthe amount of structure and construction cost of the building areinevitably increased, which lowers the economic efficiency of thebuilding.

DISCLOSURE Technical Problem

Accordingly, the present disclosure has been made keeping in mind theabove problem occurring in the related art, and an objective of thepresent disclosure is intended to provide an impact-absorbing device,which is configured to significantly reduce noise between floors of abuilding to secure quiet residential environment, and a floor structureof the building, which blocks noise between floors by using the same.

Technical Solution

The present disclosure has been made keeping in mind the above problemoccurring in the related art, and the present disclosure is intended toprovide an impact-absorbing device configured to elastically absorb animpact, and to provide a structure configured to reduce noise betweenfloors by using the impact-absorbing device when a floor of a buildingis constructed.

Advantageous Effects

According to the present disclosure, the noise between floors can besignificantly reduced, so that a building with quiet residentialenvironment can be constructed.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view showing an example of an impact-absorbing deviceaccording to the present disclosure;

FIG. 2 is an exploded-view showing the impact-absorbing device accordingto the present disclosure;

FIG. 3 is a sectional view showing the impact-absorbing device accordingto the present disclosure;

FIG. 4 is a view showing an example where the impact-absorbing deviceaccording to the present disclosure absorbs an impact.

FIG. 5 is a view showing a transmitting body according to anotherembodiment of the present disclosure;

FIG. 6 is a view showing an example of the impact-absorbing deviceaccording to another embodiment of the present disclosure; and

FIG. 7 is a view showing an example of a bottom structure to which theimpact-absorbing device according to the present disclosure is applied.

MODE FOR INVENTION

The present disclosure proposes an impact-absorbing device and astructure for blocking noise between floors by using theimpact-absorbing device. The present disclosure will be described indetail with reference to accompanying FIGS. 1 to 7 .

First, the impact-absorbing device will be described. FIG. 1 is a viewshowing an example of an impact-absorbing device according to thepresent disclosure. FIG. 2 is an exploded-view showing theimpact-absorbing device according to the present disclosure. FIG. 3 is asectional view showing the impact-absorbing device according to thepresent disclosure.

As described above, the impact-absorbing device according to the presentdisclosure includes an upper cylinder 120 having an empty inside portionand an opening opened downward and a lower container 140 coupled to theupper cylinder 120. The impact-absorbing device is configured toreciprocate while the lower container 140 is partially inserted into theupper cylinder 120, so that the length thereof may extend and contract.Herein, the lower container 140 may have also an empty inside space andan opening opened upward as the upper cylinder 120.

A support plate 122 may be provided on the outer circumference of theupper cylinder 120. The support plate 122 may be provided at a lowerportion of the upper cylinder 120. A fastening protrusion 102 may beprovided on an upper end of the upper cylinder 120. As the fasteningprotrusion 102 is provided on the upper end of the upper cylinder 120,the fastening protrusion 102 may be provided on an upper end of a body100.

At least one of the upper cylinder 120 and the lower container 140includes an elastic support 160 therein, and the elastic support 160 isarranged in a transversal direction. In a case of providing the elasticsupport 160 in the upper cylinder 120, the elastic support 160 isprovided in a location spaced apart from the ceiling at a predeterminedgap, and in a case of providing the elastic support 16 in the lowercontainer 140, the elastic support 160 is provided in a location spacedapart from the bottom in the elastic support 160 at a predetermined gap.

The elastic support 160 is configured to elastically contract and extendwhile securing sufficient strength, and the elastic support 160 may bemade of a steel wire as shown in the drawing. A plurality of steel wiresis provided such that opposite ends thereof are securely fixed to edgesof the upper cylinder 120 and the lower container 140. Herein, it ispreferable that each of the steel wires is arranged to pass through thecenter of weight in a sectional direction of the upper cylinder 120 andthe lower container 140. Therefore, when the elastic support 160 isformed of the plurality of steel wires, the steel wires cross each otherwhile passing through the center of weight, thereby providing the shapein which the steel wires radially spread from the center of weight.

Meanwhile, in addition to the steel wires, the elastic support 160 maybe made of a metal mesh, metal plate, plastic plate, etc. When astructure may support an external force, be elastically deformed, andabsorb an impact, the structure may be adopted as the elastic support160.

According to the present disclosure, the impact-absorbing deviceincludes a transmitting body 180 provided inside the body 100. Thetransmitting body 180 may be configured to be supported by the elasticsupport 160. In a case where the elastic support 160 is provided in theupper cylinder 120, an upper end of the transmitting body 180 is incontact with the elastic support 160 and a lower end thereof is incontact with the bottom in the lower container 140. In a case where theelastic support 160 is provided in the lower container 140, the upperend of the transmitting body 180 is in contact with the ceiling of theupper cylinder 120 and the lower end thereof is in contact with theelastic support 160. In a case where the elastic support 160 is providedin both the upper cylinder 120 and the lower container 140, the upperend and the lower end of the transmitting body 180 may be in contactwith the elastic supports 160 in the upper cylinder 120 and the lowercontainer 140.

When an impact is applied to the upper cylinder 120, the transmittingbody 180 provided as described above transmits the impact to the elasticsupport 160. Then, the elastic support 160 is elastically deformed andabsorbs the impact. In this process, the lower container 140 is movesinto the upper cylinder 120 and thus the length of the body 100 isreduced, and after the impact is absorbed, the length of the body 100extends and is restored to the initial length thereof to absorb theimpact.

The transmitting body 180 may have a cylindrical shape. The transmittingbody 180 may be made of a rubber material with elasticity. In the aboveconfiguration, a groove 182 is formed in a portion of the transmittingbody 180 in contact with the steel wire, so that the steel wire isfitted into the groove 182. Therefore, the transmitting body 180 isstably provided.

A through hole 104 may be provided at any one of the upper cylinder 120and the lower container 140. A plurality of through holes 104 may beprovided at any one of the upper cylinder 120 and the lower container140, and according to this configuration, air may be moved into and fromthe body 100 in a process where the body 100 contracts by acting on theimpact. Therefore, contraction and extension movement of the body 100 isefficiently performed.

Then, a sound-absorbing material may be filled inside the body 100. Thesound-absorbing material absorbs noise generated in a process where thebody 100 absorbs an impact.

Then, the upper cylinder 120 and the lower container 140 may be coupledto each other without being separated in the contraction and extensionmovement. This coupling may be achieved by applying elastic silicone atpredetermined intervals on a portion where the upper cylinder 120 andthe lower container 140 are connected to each other. The presentdisclosure is not limited to the embodiment, and when a structure iscontractible and extendable but not separated, the structure may beapplied.

FIG. 4 is a view showing an example where the impact-absorbing deviceaccording to the present disclosure absorbs an impact.

When a load is applied to the impact-absorbing device according to thepresent disclosure, the length of the body 100 is reduced while thelower container 140 is moved into the upper cylinder 120. When a load isapplied to the upper cylinder 120 while the lower container 140 issupported, the upper cylinder 120 is lowered and the length of the bodyis reduced. Therefore, the elastic support 160 is pressed by thetransmitting body 180 to be elastically deformed and supports the load.Accordingly, the impact is elastically absorbed.

FIG. 5 is a view showing the transmitting body according to anotherembodiment of the present disclosure.

As described above, the transmitting body 180 according to the presentdisclosure may have a spherical shape. The transmitting body 180 may bemade of a material such as rubber with elasticity and may be provided tobe supported by the elastic support 160.

FIG. 6 is a view showing an example of the impact-absorbing deviceaccording to another embodiment of the present disclosure.

As shown in the drawing, in the impact-absorbing device according to thepresent disclosure, the elastic support 160 may be provided only in thelower container 140. In this case, the upper end of the transmittingbody 180 is in contact with the ceiling in the upper cylinder 120 andthe lower end of the transmitting body 180 is supported by the elasticsupport 160. Although not shown in the drawing, alternately, the elasticsupport 160 may be provided only in the upper cylinder 120.

Hereinbelow, a structure of blocking noise between floors by using theimpact-absorbing device according to the present disclosure as describedabove will be described. FIG. 7 is a view showing an example of a bottomstructure to which the impact-absorbing device according to the presentdisclosure is applied. The impact-absorbing device according to thepresent disclosure is applied to a bottom structure of a building.

As shown in the drawing, the structure for blocking noise between floorsaccording to the present disclosure is configured such that theimpact-absorbing device according to the present disclosure is providedbetween a concrete base 600 and an indoor floor layer 400, which isarranged above the concrete base 600 at a predetermined gap. A gap isformed between the concrete base 600 and the indoor floor layer 400, andthe body 100 of the impact-absorbing device is provided in the gap at apredetermined interval.

The indoor floor layer 400 may include a panel 420. The panel 420 isformed of plastic or wood, and is formed with a thickness sufficient tosupport a load. When the indoor floor layer 400 is formed by pouringcement mortar, the panel 420 serves to allow the pouring work.

An insulation layer 200 is formed below the indoor floor layer 400. Theinsulation layer 200 is provided with a constant thickness, and when thepanel 420 is provided to the indoor floor layer 400, the insulationlayer 200 is provided below the panel 420.

In the above configuration, an upper portion of the body 100 of theimpact-absorbing device according to the present disclosure penetratesthrough the insulation layer 200. Preferably, the body 100 is formedsuch that only the upper cylinder 120 penetrates through the insulationlayer 200. Accordingly, even when a height from the concrete base 600 tothe indoor floor layer 400 is formed equal to the height of the body100, the insulation layer 200 may be formed, so that even when theinsulation layer 200 is formed, the height of the indoor floor layer 400is not changed. In this configuration, the upper end of the body 100 isin contact with the indoor floor layer 400, and as a result, an impactapplied from the indoor floor layer 400 is directly transmitted to thebody 100.

Herein, the fastening protrusion 102 provided on the upper end of thebody 100 is formed with a constant height from the center portion of thebody 100, and is fitted into the indoor floor layer 400. When the panel420 is provided at the indoor floor layer 400, the fastening protrusion102 is fitted into the panel 420. The fastening protrusion 102 may havea screw structure to be fitted in a screw-coupling manner. Therefore, aposition of the body 100 is securely fixed.

As described above, in the structure having the insulation layer 200,the support plate 122 provided on the outer circumference of the uppercylinder 120 supports a lower end of the insulation layer 200 tocontribute so that the insulation layer 200 remains stable.

Meanwhile, an anti-vibration rubber 500 may be provided under a lowerend of the body 100. The anti-vibration rubber 500 is formed in a plateshape and with a constant thickness. The anti-vibration rubber 500serves to prevent vibrations or noise generated by operation of the body100 from being transmitted to the concrete base 600. The anti-vibrationrubber 500 may be formed of rubber as well as other materials that mayhave the same function as rubber.

As described above, in the structure for blocking noise between floorsaccording to the present disclosure, an impact generated in the indoorcircumstances is transmitted to the body 100 through the indoor floorlayer 400, and thus the body 100 slightly contracts and then extends toan initial position thereof as described with reference to FIG. 4 , sothat the impact is softly absorbed. Therefore, noise between floors canbe efficiently mitigated.

DESCRIPTION FOR REFERENCE NUMERALS

-   -   100: body, 102: fastening protrusion,    -   104: through hole, 120: upper cylinder,    -   122: support plate, 140: lower container,    -   160: elastic support, 180: transmitting body,    -   182: groove, 200: insulation layer,    -   400: indoor floor layer, 420: panel,    -   500: anti-vibration rubber, 600: concrete base.

1. An impact-absorbing device comprising: a body (100) comprising anupper cylinder (120), of which an inside space is empty and that has anopening opened downward, and a lower container (140), of which an upperend is inserted into the upper cylinder (120), so that the lengththereof is extendable and contractible; and an elastic support (160)formed in a transverse direction inside at least any one of the uppercylinder (120) and the lower container (140) and a transmitting body(180) configured to be supported by the elastic support (160) andtransmit an impact applied to the upper cylinder (120) to the elasticsupport (160), wherein when an impact is applied to the upper cylinder(120), the length of the body (100) is reduced, and thus the elasticsupport (160) is elastically deformed by the transmitting body (180) toabsorb the impact.
 2. The impact-absorbing device of claim 1, whereinthe elastic support (160) is made of a steel wire.
 3. Theimpact-absorbing device of claim 1, wherein the transmitting body (180)has a cylindrical or spherical shape, and having has a groove (182)formed on a portion in contact with the steel wire so that the steelwire is fitted into the groove (182).
 4. The impact-absorbing device ofclaim 1, wherein at least any one of the upper cylinder (120) and thelower container (140) has a through hole (104) so that air flows throughthe through hole (104) during an extending and contracting process. 5.The impact-absorbing device of claim 1, wherein a sound-absorbingmaterial is filled inside the body (100).
 6. A structure for blockingnoise between floors, the structure comprising: a concrete base (600)and an indoor floor layer (400) provided above the concrete base (600)with a predetermined gap; and an impact-absorbing device of according toclaim 1 provided between the concrete base (600) and the indoor floorlayer (400), wherein an impact generated from the indoor floor layer(400) is absorbed by the impact-absorbing device to block noise betweenfloors.
 7. The structure of claim 6, wherein a fastening protrusion(102) is provided on an upper end of the body (100) of theimpact-absorbing device, and a position of the body is fixed as thefastening protrusion (102) is fitted into the indoor floor layer (400).8. The structure of claim 6, further comprising: an insulation layer(200) provided below the indoor floor layer (400), wherein the uppercylinder (120) of the body (100) of the impact-absorbing devicepenetrates through the insulation layer (200).
 9. The structure of claim8, wherein a support plate (122) is provided on an outer circumferenceof the upper cylinder (120), and the support plate (122) is configuredto support the insulation layer (200).
 10. The structure of claim 6,wherein an anti-vibration rubber (500) is provided on a lower end of thebody (100) of the impact-absorbing device.